Note that you can download the scripts shown in this article. Most of the new additions fall into the advanced category and won't affect what's shown in this tutorial. To celebrate and to help introduce new users to the power and ease of FFmpeg, I created this entry-level tutorial for single and two-pass encoding with FFmpeg.įor the record, many of the major changes to FFmpeg were at the application programming interface level, so if you're driving the program from the command line, you'll see little difference. Thankfully, Lorenz didn't 'break' any of the command strings that I tested from my FFmpeg book, Learn to Produce Video With FFmpeg: In Thirty Minutes or Less, or courses, so hopefully, it won't break existing command strings for other users. The following frame sizes (in pixels) are in the 16:9 ratio and each dimension is divisible by 16.On January 17, 2022, FFmpeg released FFmpeg 5.0, called Lorentz. The -tag:v hvc1 option is the key to making the resulting video compatible with the Apple QuickTime player. If the source audio is already in a reasonable format and you just want to re-encode the video, then -c:a copy can be used to exactly copy the audio without re-encoding. AAC is chosen by default for mp4 files, so it may not be necessary to specify the audio settings. In this example we’re setting the audio codec ( -c:a aac) and bitrate ( -b:a 128k). Changing the crf setting by 6 in either direction will roughly double/halve the video bitrate. The range is between 0 and 51, but the extreme values aren’t much use. The constant rate factor (crf) defaults to 28 for H265 encoding, so the -crf 28 option in this command is redundant, but you can make the number lower (for higher quality) or higher (for lower quality).

The -c:v libx265 sets the video codec to H265.

Convert a collection of 4k videos to a smaller sizeįor f in *.MP4 do ffmpeg -i '$f' -vf scale=1920:-1 -pix_fmt yuv420p -crf 22 -metadata artist='My Name' '$.mp4'ĭone Generate Apple-compatible HEVC H265 encodingįfmpeg -i input.mov -c:v libx265 -crf 28 -c:a aac -b:a 128k -tag:v hvc1 output.mp4 It has useful defaults for quality and video/audio codecs to use, so you tend to get what you expect for well-defined file formats. Basic video conversionįFmpeg can be very simple to use. Search Home → Photo & video → FFmpeg recipesįFmpeg is an open source command line tool to convert multimedia files between formats and optionally apply a wide range of filters and effects.

Ffmpeg crf scaling